Summary of Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2019
Accounting Policies [Abstract]
Leases	Leases—Effective January 1, 2019, arrangements containing leases are evaluated as an operating or finance lease at lease inception. For operating leases, the Company recognizes an operating right-of-use asset and operating lease liability at lease commencement based on the present value of lease payments over the lease term. Since an implicit rate of return is not readily determinable for the Company's leases, an incremental borrowing rate is used in determining the present value of lease payments, and is calculated based on information available at the lease commencement date. Most leases include renewal options; however, generally it is not reasonably certain that these options will be exercised at lease commencement. Lease expense is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recognized on the Company’s balance sheet. The Company does not separate lease and non-lease components for its real estate and automobile leases
Recent Accounting Pronouncements	Recent Accounting Pronouncements—The Company considers the applicability and impact of all recent accounting standards updates (“ASUs”) issued by the Financial Accounting Standards Board (“FASB”). ASUs not listed below were assessed and determined to be either not applicable or are expected to have an immaterial impact on the consolidated and combined financial position or results of operations. The Company adopted ASU No. 2016-02, Leases (Topic 842), effective January 1, 2019, and applied the changes prospectively, recognizing a cumulative-effect adjustment to the beginning balance of retained earnings as of the adoption date. As permitted by the new guidance, the Company elected the package of practical expedients, which among other things, allowed historical lease classification to be carried forward. Upon adoption of ASU No. 2016-02, the Company recognized an aggregate lease liability of $115 million, calculated based on the present value of the remaining minimum lease payments for qualifying leases as of January 1, 2019, with a corresponding right-of-use asset of $112 million. The cumulative-effect adjustment recognized to opening retained earnings was not material. The adoption of the new guidance did not impact the Company’s unaudited consolidated interim statement of operations or cash flows. In February 2018, the FASB issued guidance that allows for an entity to elect to reclassify the income tax effects on items within accumulated other comprehensive income resulting from the U.S. Tax Cuts and Jobs Act (“U.S. Tax Reform”) to retained earnings. The guidance is effective for fiscal years beginning after December 15, 2018 with early adoption permitted, including interim periods within those years. The Company adopted the standard on January 1, 2019 and has not reclassified the income tax effects of U.S. Tax Reform from accumulated other comprehensive income to retained earnings. The Company has adopted the aggregate portfolio accounting policy for recognizing the disproportionate income tax effects in accumulated other comprehensive income. On June 16, 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), which provides guidance designed to provide financial statement users with more information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. From November 2018 to April 2019, amendments to Topic 326 were issued to clarify numerous accounting topics. When determining such expected credit losses, the guidance requires companies to apply a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendment is effective on a modified retrospective basis for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted for fiscal years and interim periods beginning after December 15, 2018. The Company is currently assessing the impact this pronouncement may have on our trade receivables and notes receivables. In August 2018, the FASB issued guidance which amends the current disclosure requirements regarding defined benefit pensions and other post retirement plans and allows for the removal of certain disclosures, while adding certain new disclosure requirements. This standard is effective for fiscal years beginning after December 15, 2020 and allows for early adoption. The Company does not expect this new standard to have a significant impact to its disclosures.

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2019

Leases—Effective January 1, 2019, arrangements containing leases are evaluated as an operating or finance lease at lease inception. For operating leases, the Company recognizes an operating right-of-use asset and operating lease liability at lease commencement based on the present value of lease payments over the lease term.

Since an implicit rate of return is not readily determinable for the Company's leases, an incremental borrowing rate is used in determining the present value of lease payments, and is calculated based on information available at the lease commencement date. Most leases include renewal options; however, generally it is not reasonably certain that these options will be exercised at lease commencement. Lease expense is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recognized on the Company’s balance sheet. The Company does not separate lease and non-lease components for its real estate and automobile leases

Recent Accounting Pronouncements

Recent Accounting Pronouncements—The Company considers the applicability and impact of all recent accounting standards updates (“ASUs”) issued by the Financial Accounting Standards Board (“FASB”). ASUs not listed below were assessed and determined to be either not applicable or are expected to have an immaterial impact on the consolidated and combined financial position or results of operations.

The Company adopted ASU No. 2016-02, Leases (Topic 842), effective January 1, 2019, and applied the changes prospectively, recognizing a cumulative-effect adjustment to the beginning balance of retained earnings as of the adoption date. As permitted by the new guidance, the Company elected the package of practical expedients, which among other things, allowed historical lease classification to be carried forward.

Upon adoption of ASU No. 2016-02, the Company recognized an aggregate lease liability of $115 million, calculated based on the present value of the remaining minimum lease payments for qualifying leases as of January 1, 2019, with a corresponding right-of-use asset of $112 million. The cumulative-effect adjustment recognized to opening retained earnings was not material. The adoption of the new guidance did not impact the Company’s unaudited consolidated interim statement of operations or cash flows.

In February 2018, the FASB issued guidance that allows for an entity to elect to reclassify the income tax effects on items within accumulated other comprehensive income resulting from the U.S. Tax Cuts and Jobs Act (“U.S. Tax Reform”) to retained earnings. The guidance is effective for fiscal years beginning after December 15, 2018 with early adoption permitted, including interim periods within those years. The Company adopted the standard on January 1, 2019 and has not reclassified the income tax effects of U.S. Tax Reform from accumulated other comprehensive income to retained earnings. The Company has adopted the aggregate portfolio accounting policy for recognizing the disproportionate income tax effects in accumulated other comprehensive income.

On June 16, 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), which provides guidance designed to provide financial statement users with more information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. From November 2018 to April 2019, amendments to Topic 326 were issued to clarify numerous accounting topics. When determining such expected credit losses, the guidance requires companies to apply a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendment is effective on a modified retrospective basis for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted for fiscal years and interim periods beginning after December 15, 2018. The Company is currently assessing the impact this pronouncement may have on our trade receivables and notes receivables.

In August 2018, the FASB issued guidance which amends the current disclosure requirements regarding defined benefit pensions and other post retirement plans and allows for the removal of certain disclosures, while adding certain new disclosure requirements. This standard is effective for fiscal years beginning after December 15, 2020 and allows for early adoption. The Company does not expect this new standard to have a significant impact to its disclosures.